More complex forms can be built using the grid classes. Use these for form layouts that require multiple columns, varied widths, and additional alignment options.
Create horizontal forms with the grid by adding the .row class to form groups and using the .col-*-* classes to specify the width of your labels and controls.
Use the .form-inline class to display a series of labels, form controls, and buttons on a single horizontal row.
Place an icon inside add-on on either side of an input. You may also place one on right side of an input.